An electronic device and method are disclosed herein. The electronic device includes a display, a printed circuit board (PCB) disposed below the display and having a first surface facing the display, a biometric sensor disposed on the first surface of the PCB and configured to measure a biometric signal related to a heartbeat, a pressure sensor disposed below the display and configured to generate a pressure signal based on measuring a pressure applied to the display, a processor. The processor implements the method, including measuring, by the biometric sensor, the biometric signal, measuring, by the pressure sensor, the pressure applied to the display, calculating biometric information related to a heartbeat by interlinking the biometric signal and the pressure signal, and outputting the calculated biometric information to the display.

An integrated window for a photosensor for use in an electronic device has first and second transparent regions separated by an opaque region. The first transparent region allows a transmitter to emit light out of the housing of the electronic device and the second transparent region allows a receiver to receive light through the housing. The opaque region is disposed between the first and second transparent regions to isolate them from one another such that the transmitted light is isolated from the received light.

An example system for estimating a hydration level of an individual can include: a mechanism configured to apply mechanical pressure to a digit of the individual; an light detector configured to sense the light from the digit; and a controller programmed to perform functions including: send a first signal to the mechanism to apply the mechanical pressure to the digit; send a second signal to the mechanism to release the mechanical pressure on the digit; determine a capillary refill time based upon a third signal from the light detector indicating an amount of time for capillaries of the individual to refill with blood; and estimate the hydration level of the individual based upon the capillary refill time and one or more additional parameters.

A device is able to measure blood pressure from inside a user's ear. In the illustrated example, the device has three components: (1) a pulse sensor attached to an inflatable pipe which is placed inside the ear, (2) an air pump with a controller, and (3) blood pressure estimation modules including processors and computer executable instruction executed on the processors to execute blood pressure estimation algorithms.

A pulse diagnosis device and a control method therefor, relating to the technical field of pulse diagnosis, and specifically aiming to solve the problem that an existing pulse diagnosis device cannot be well adapted to wrists of different sizes. The pulse diagnosis device comprises a housing (1), a cavity (2) which is formed in the housing (1) and accommodates a wrist (8), an airbag assembly provided between the cavity (2) and an inner wall of the housing (1), a controller (6) and an air pump assembly connected to the airbag assembly; the airbag assembly comprises one or more first airbags (31) and a second airbag (32) which are sequentially stacked from outside to inside, the first airbags (31) and the second airbag (32) each are provided with an air pressure sensor (53), a pulse diagnosis sensor (4) is provided on the side of the second airbag (32) facing the cavity (2), and the controller (6) can control the air pump assembly to inflate any one of the first airbags (31) and the second airbag (32) separately. The control method comprises first inflating the first airbags (31), and then inflating the second airbag (32), so that the airbag assembly has a wide range of deformation amounts to adapt to wrists (8) of different sizes, improving the comfort and pulse diagnosis accuracy.

A blood pressure measurement cuff includes a clamp mechanism that sandwiches a measurement site. The clamp mechanism includes a first clamp portion having a shape that is curved along a first half of the measurement site and a second clamp portion having a shape that is curved along a second half of the measurement site. The slide hole is formed penetrating through one end portion of the first clamp portion. The slide bar extends from the one end portion of the second clamp portion and into the slide hole, fits therein, and slides with friction with respect to the slide hole. The slide hole and the slide bar are curved so as to protrude on a side near other end portions of the first clamp portion and the second clamp portion.

An integrated window for a photosensor for use in an electronic device has first and second transparent regions separated by an opaque region. The first transparent region allows a transmitter to emit light out of the housing of the electronic device and the second transparent region allows a receiver to receive light through the housing. The opaque region is disposed between the first and second transparent regions to isolate them from one another such that the transmitted light is isolated from the received light.

A photoplethysmography sensor is provided. The sensor includes a housing, a cover plate, an optical device configured to emit light outwards, and a photoelectric sensor configured to receive an external optical signal. The housing and the cover plate form an enclosed space, and the optical device and the photoelectric sensor are accommodated in the enclosed space. The cover plate includes a first area used by the optical device to emit the light outwards and a second area used by the photoelectric sensor to receive the external optical signal. The cover plate further includes a third area and a shielding structure disposed on the third area, and the shielding structure is configured to isolate light between the optical device and the photoelectric sensor. The shielding structure is disposed in the third area so that isolation between the optical device and the photoelectric sensor is improved.

A compression garment may be used for measuring fluid buildup in a subcutaneous tissue space. The compression garment may include a processor, an emitter, and a detector. The emitter and the detector are coupled to the processor. The emitter may be configured to emit a signal into a subcutaneous tissue space of a subject. The signal may be reflected by the subcutaneous tissue space. The detector may be configured to receive the reflected signal. The processor may be configured to determine a fluid status in the subcutaneous tissue space. The fluid buildup in the subcutaneous tissue space may be based on an energy level of the reflected signal.

Methods and systems of optically measuring systolic and/or diastolic blood pressure of a mammal having biological tissue are disclosed herein. In some embodiments, the system comprises an optical blood motion sensor, a gas-sealable inflatable cushion having a flexible and transparent (FOT) barrier section, and an optical blood motion sensor comprising a laser. When pressure (e.g. at least systolic pressure) illuminates the tissue, laser light may pass en route to the tissue through the FOT sealing barrier section of the gas-sealable inflatable cushion as well as cushion interior. In some embodiments, a rigid restrictor comprising an optically transparent section is provided, and laser light also passes through the optically transparent section of the rigid restrictor en route to the biological tissue.